The most intriguing thing about this theory, if it's right, is that it explains not merely which kinds of discussions to avoid, but how to have better ideas. If people can't think clearly about anything that has become part of their identity, then all other things being equal, the best plan is to let as few things into your identity as possible.
This seems obvious. For one thing, if you are loyal to anything that incorporates a particular view of the world rather than to truth per se, you have to tend away from believing true things.
Ramana Kumar says this is not obvious, and (after discussion of this and other topics) that I shouldn't care if things seem obvious, and should just point them out anyway, as they're often not, to him at least (so probably to most). This seems a good idea, except that a microsecond's introspection reveals that I really don't want to say obvious things. Why? Because my identity fondly includes a bit about saying not-obvious things. Bother.
Is it dangerous here? A tiny bit, but I don't seem very compelled to change it. And nor, I doubt, would be many others with more important things. If you identify with being Left or Right more than being correct to begin with, what would make you want to give it up?
Ramana suggests that if having an identity is inescapable but the specifics are flexible, then the best plan is perhaps to identify with some small set of things that impels you to kick a large set of other things out of your identity.
What makes people identify with some things and use/believe/be associated with/consider probable/experience others without getting all funny about it anyway?
As a side note, I don't fully get the concept. I just notice it happens, including in my head sometimes, and that it seems pretty pertinent to people insisting on being wrong. If you can explain how it works or what it means, I'm curious.